1
2
Book
3
4
5
6
7
8
Published: Neumünster : Wachholtz, 1998
Book
10
11
Published: Wien u.a. : Böhlau, 1992.
Book
12
Published: Teetz : Hentrich & Hentrich, 2000.
Book
13
14
15
16
Book
17
Book
18
19
Published: Essen : Klartext-Verl, 1995.
Book
20